{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:MUE5VRGXLJL2VSGRNUP2W5GAHW","short_pith_number":"pith:MUE5VRGX","canonical_record":{"source":{"id":"2301.04284","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-11T03:09:45Z","cross_cats_sorted":["cs.NA","math.NA","stat.ME"],"title_canon_sha256":"a8dcefa412d99785649d96ee8656cd1b2b154244c0b493d44572c877351db544","abstract_canon_sha256":"0d3051fd9a8a497eae2c571153a25347244c0cd8566e385ab8be3229af43740a"},"schema_version":"1.0"},"canonical_sha256":"6509dac4d75a57aac8d16d1fab74c03d8bd69b8ef9c910ec8ba068f7632bcfeb","source":{"kind":"arxiv","id":"2301.04284","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.04284","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"arxiv_version","alias_value":"2301.04284v1","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.04284","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_12","alias_value":"MUE5VRGXLJL2","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_16","alias_value":"MUE5VRGXLJL2VSGR","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_8","alias_value":"MUE5VRGX","created_at":"2026-07-05T05:32:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:MUE5VRGXLJL2VSGRNUP2W5GAHW","target":"record","payload":{"canonical_record":{"source":{"id":"2301.04284","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-11T03:09:45Z","cross_cats_sorted":["cs.NA","math.NA","stat.ME"],"title_canon_sha256":"a8dcefa412d99785649d96ee8656cd1b2b154244c0b493d44572c877351db544","abstract_canon_sha256":"0d3051fd9a8a497eae2c571153a25347244c0cd8566e385ab8be3229af43740a"},"schema_version":"1.0"},"canonical_sha256":"6509dac4d75a57aac8d16d1fab74c03d8bd69b8ef9c910ec8ba068f7632bcfeb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:32:14.476352Z","signature_b64":"b3xRdO/FgJhKNuZxc3JuYXXyKOnbl9zipXMtAR/w4+HjnckEUq2DlML3MhzmqbtOEFQZFLla1uKv/SXM1hCnAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6509dac4d75a57aac8d16d1fab74c03d8bd69b8ef9c910ec8ba068f7632bcfeb","last_reissued_at":"2026-07-05T05:32:14.475907Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:32:14.475907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.04284","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:32:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i1U5yoPJzr5TiiZBYu/PW04rdSTNEuBPMmWEXJ7uDKy8CSlN/TWwecMeF0f1pmtTbcsUuFfGoUsw47CMuIW1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T06:54:30.808834Z"},"content_sha256":"23dbb1b7f29c7bf760db9505b95a41c0d3f008671aa26bcf5b95d98037de315b","schema_version":"1.0","event_id":"sha256:23dbb1b7f29c7bf760db9505b95a41c0d3f008671aa26bcf5b95d98037de315b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:MUE5VRGXLJL2VSGRNUP2W5GAHW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ejecta cloud distributions for the statistical analysis of impact cratering events onto asteroids' surfaces: a sensitivity analysis","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.NA","math.NA","stat.ME"],"primary_cat":"astro-ph.EP","authors_text":"Camilla Colombo, Mirko Trisolini, Yuichi Tsuda","submitted_at":"2023-01-11T03:09:45Z","abstract_excerpt":"This work presents the model of an ejecta cloud distribution to characterise the plume generated by the impact of a projectile onto asteroids surfaces. A continuum distribution based on the combination of probability density functions is developed to describe the size, ejection speed, and ejection angles of the fragments. The ejecta distribution is used to statistically analyse the fate of the ejecta. By combining the ejecta distribution with a space-filling sampling technique, we draw samples from the distribution and assigned them a number of \\emph{representative fragments} so that the evolu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.04284","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2301.04284/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:32:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UUJ55W3E3M4QFiAkQxP0EYz1uWGaVbTCfrJu+TqN/2jPBgsjJD34fS5U+D2o81pCdPzOCwg6KV3kaxW0fX+vCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T06:54:30.809193Z"},"content_sha256":"e6778a65d94652b55d29a3018ccb4f6ed24a101c50a1f958a54f7ca14cc41fb3","schema_version":"1.0","event_id":"sha256:e6778a65d94652b55d29a3018ccb4f6ed24a101c50a1f958a54f7ca14cc41fb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/bundle.json","state_url":"https://pith.science/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-06T06:54:30Z","links":{"resolver":"https://pith.science/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW","bundle":"https://pith.science/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/bundle.json","state":"https://pith.science/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MUE5VRGXLJL2VSGRNUP2W5GAHW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:MUE5VRGXLJL2VSGRNUP2W5GAHW","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0d3051fd9a8a497eae2c571153a25347244c0cd8566e385ab8be3229af43740a","cross_cats_sorted":["cs.NA","math.NA","stat.ME"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-11T03:09:45Z","title_canon_sha256":"a8dcefa412d99785649d96ee8656cd1b2b154244c0b493d44572c877351db544"},"schema_version":"1.0","source":{"id":"2301.04284","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.04284","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"arxiv_version","alias_value":"2301.04284v1","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.04284","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_12","alias_value":"MUE5VRGXLJL2","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_16","alias_value":"MUE5VRGXLJL2VSGR","created_at":"2026-07-05T05:32:14Z"},{"alias_kind":"pith_short_8","alias_value":"MUE5VRGX","created_at":"2026-07-05T05:32:14Z"}],"graph_snapshots":[{"event_id":"sha256:e6778a65d94652b55d29a3018ccb4f6ed24a101c50a1f958a54f7ca14cc41fb3","target":"graph","created_at":"2026-07-05T05:32:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2301.04284/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work presents the model of an ejecta cloud distribution to characterise the plume generated by the impact of a projectile onto asteroids surfaces. A continuum distribution based on the combination of probability density functions is developed to describe the size, ejection speed, and ejection angles of the fragments. The ejecta distribution is used to statistically analyse the fate of the ejecta. By combining the ejecta distribution with a space-filling sampling technique, we draw samples from the distribution and assigned them a number of \\emph{representative fragments} so that the evolu","authors_text":"Camilla Colombo, Mirko Trisolini, Yuichi Tsuda","cross_cats":["cs.NA","math.NA","stat.ME"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-11T03:09:45Z","title":"Ejecta cloud distributions for the statistical analysis of impact cratering events onto asteroids' surfaces: a sensitivity analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.04284","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:23dbb1b7f29c7bf760db9505b95a41c0d3f008671aa26bcf5b95d98037de315b","target":"record","created_at":"2026-07-05T05:32:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0d3051fd9a8a497eae2c571153a25347244c0cd8566e385ab8be3229af43740a","cross_cats_sorted":["cs.NA","math.NA","stat.ME"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-11T03:09:45Z","title_canon_sha256":"a8dcefa412d99785649d96ee8656cd1b2b154244c0b493d44572c877351db544"},"schema_version":"1.0","source":{"id":"2301.04284","kind":"arxiv","version":1}},"canonical_sha256":"6509dac4d75a57aac8d16d1fab74c03d8bd69b8ef9c910ec8ba068f7632bcfeb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6509dac4d75a57aac8d16d1fab74c03d8bd69b8ef9c910ec8ba068f7632bcfeb","first_computed_at":"2026-07-05T05:32:14.475907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:32:14.475907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b3xRdO/FgJhKNuZxc3JuYXXyKOnbl9zipXMtAR/w4+HjnckEUq2DlML3MhzmqbtOEFQZFLla1uKv/SXM1hCnAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:32:14.476352Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.04284","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23dbb1b7f29c7bf760db9505b95a41c0d3f008671aa26bcf5b95d98037de315b","sha256:e6778a65d94652b55d29a3018ccb4f6ed24a101c50a1f958a54f7ca14cc41fb3"],"state_sha256":"067f8037357c7eca44e38b84412570a4876bd4846de80e9255c3d128ed4d5568"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cNDFnFCvq7Ud21WkNxi1E9vc7Ehuy3D5PkpznouEdPMAZ5G5zzBKBWqdXb4y18y4jXku3QTps/lL8jckKdeiCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T06:54:30.811187Z","bundle_sha256":"0441f6be8a1193183ab3e6b1e137276b55f3bbe66ca85a049b1688d8d1040e03"}}